This is a wake-up call… ALWAYS torque down your wheels!
Coming around a turn at 50MPH and losing the front left tire can be devastating, and put an end to a track day fast! When it comes to working on cars everything should be torqued to spec, especially the wheels. His reaction was awesome, he was just so confused about what happened. When the wheel finally popped off it looked like it did some expensive damage to the rotor and fender. Like he said, if that was on a faster track that would have been much worse and could’ve caused him and his car great harm!